Drawing rulers 制图尺
Now we also want some drawing pens, ink and rulers, and some drawing paper.
现在我们还需要一些绘图笔、墨水和尺子，以及一些绘图纸。
The function of geometry drawing board in helping maths teaching is superior to the traditional rulers.
利用几何画板绘图辅助数学教学，有着传统尺规所无法比拟的优越性。
It can not only be used in drawing graphics like compasses and rulers, but also can reach dynamic effect which compasses and rulers can't do.
它既可以像使用圆规，直尺一样的用于作图，同时它有可以达到圆规、直尺不能达到的动态效果。
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